11/11/2014 03:25 EST | Updated 01/11/2015 05:59 EST

Lawsuit Threats Against Canadian Oil Abound In U.S., Despite New Keystone-Friendly Congress

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The Cowboy and Indian Alliance marches with rock icon Neil Young, center, and actress and environmentalist Daryl Hannah, second from right, to the National Museum of the American Indian in Washington, D.C., U.S., on Saturday, April 26, 2014. The Cowboy and Indian Alliance, along with leaders from Native American tribes like the Dene, Cree and Metis Peoples, presented a teepee to the museum to deliver to President Barack Obama in protest of the Keystone XL pipeline. Photographer Pete Marovich/Boomberg

WASHINGTON - There are new threats of lawsuits against Canadian oil pipeline projects in the United States.

The legal threats suggest the election of an oil-friendly, Republican-dominated Congress hasn't put recent pipeline battles to rest.

One activist fighting the Keystone XL project in Nebraska says landowners will sue should President Barack Obama sign any pro-Keystone bill passed by the new Congress.

Jane Kleeb says the grounds for such a suit would be constitutional, and revolve around whether Congress actually has the power to pass legislation on such cross-border infrastructure.

She compares it to the case currently before the Nebraska courts, which argues that the process to approve the route in that state was unconstitutional.

There's also a new lawsuit against another pipeline from Canada — this one in a Minnesota court against Enbridge Inc.'s plan to expand its existing Alberta Clipper network.

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